Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visit yawcult.co.

.jp.j. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacult.

This is Scientific Americans' 60-second science. I'm Steve Merski.

I expected to have this interesting intellectual experience and instead it was just completely visceral.

Author and journalist David Barron talking about the first time he saw a total solar eclipse in 1998 in Aruba.

It just tapped into something very, very deep in my brain.

I mean, I really think even though I knew what was going on,

the gut reaction was one of absolute horror and at the same time awe that it just sort of put my

whole existence into a whole new perspective of appreciating just how powerless and puny

I am but at the same time just how powerless and puny I am, but at the same time, just how marvelous and spectacular the

universe is. And so it's both incredibly humbling and also incredibly empowering. I mean,

it's this great paradox. And that's, I think, what makes it so addictive and why I chase eclipses and why there are other people who are eclipse junkies and why I think, frankly, after August 21st of this year, there will be thousands more people who will find themselves chasing eclipses all over the world.

It's just an experience unlike anything else that you just want to have again.

David Barron will be in Jackson Hole, Wyoming, August 21st, to see his sixth total solar eclipse.

You can hear my entire half-hour discussion with Barron, available on the Scientific American

website as a science talk podcast.

We also talk about his new book,

American Eclipse, a nation's epic race to catch the shadow of the moon and win the glory of the

world. It's about a scientifically and socially important eclipse back in 1878. If you can't

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